紅茶 こうちゃ道具 どうぐ一式 いっしきであれば
kōchadōguisshikideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 紅茶道具一式

1. If one had a full set of tea utensils…; If you had a full set of tea utensils…; Assuming one has a full set of tea utensils…

Ba Conditional